Box Fort Crawl-Through: illustration of a toddler doing the activity

Box Fort Crawl-Through

from 12 months · 10-15 min · Gross motor

What you need

  • a large empty cardboard box with both ends open

How to do it

  1. Open both ends of a large sturdy box to make a tunnel.
  2. Show your toddler how to crawl in one end and out the other.
  3. Let them crawl through repeatedly, cheering each time they emerge.
  4. Check the box for sharp staples or edges before play.

Why it matters

Crawling through an enclosed tunnel builds spatial awareness and the confidence to move through tight, defined spaces.

What they're learning

Spatial awareness
Judging whether their body fits through a tunnel builds an internal sense of their own size relative to spaces.
Core strength
Crawling through a confined space works the same trunk muscles that support steady walking and running.
Confidence
Moving through an enclosed space and emerging safely builds comfort with mildly novel physical challenges.

What to look for

Watch for them pausing to peek through before committing to crawl in — that's them assessing the space first.

A tip

Check the box thoroughly for staples, tape edges, or sharp cut corners before every session.

Make it easier or harder

Easier: prop the far end open wide so it feels less enclosed

Harder: line up two boxes end to end for a longer crawl

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Gross motor activities · Activities for 1 year olds · Activities for 18 month olds · Toddler activities with a cardboard box